Picking-motion for looms.



Patented Sept. ll, I900.

J. BLANCHET.

PICKING MOTION FOR LODMS.

(Application filed Mar. 26, 1900.)

(No Model.)

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. UNrrnn STATES. PATENT OFFICE.

JOSEPH BLANCHET, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR OF ONE- HALF .TO LOUIS GUEDESSE, OF l/VOONSOOKET, RHODE ISLAND.

PICKING-MOTION FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 657,726, dated September 1 1, 1900.

Application filed March 26, 1900. Serial No. 10,117. (No model.)

To all whom it may concern.-

Be it known that I, JOSEPH BLANOHET, a citizen of the United States, residing at Provideuce, in the county of Providence and State of Rhode Island, have invented a new and useful Improvement in Picking Motions for Looms, of which the following is a specification.

This invention has reference to an improvement in the picking-motion of looms; and itconsists in the peculiar and novel construction whereby the picker is operated directly from the rock-shaft, as will be more fully set forth hereinafter.

In picking motions as heretofore constructed the cams on the cam-shaft operate the rock-shafts on the two sides of the loom and actuate a leveron each of the rock-shafts, which lever is connected by means of a strap to the picker-stick, which engages with the picker.

The main object of this invention is to simplify the construction and operation of the picking-motion by reducing thenumber of the parts as well as the weight and friction of the parts.

In carrying out my invention I lock the cam-shaft as low as possible on the sides of the loom, with the rock-shafts below the cams, and I extend the lever from the rock-shaft to or nearly to the level of the picker and connect the lever with the picker by means of a flexible blade.

Figure l is a transverse sectional view of parts of a loom, illustrating my invention. Fig. 2 is a rear View of one end of the lay of a loom, showing the connection of the lever with the picker. Fig. 3 is a detail showing the pivotal connection of the picker-strap with the lever. Fig. 4: is a face View of the adjustable bearing of the rock-shaft. Fig. 5 is a detail view of the lever extending from the rock-shaft and the stop limiting the movement of the lever. Fig. 6 is a transverse sectional view of the rock-shaft, showing the cam-shoe adj ustably secured to the same.

In the drawings, A indicates one of the side frames of the loom; A, a strut extending from one side frame to the other; A the lay-beam; A the lay-sword; A, the shuttle-box; A the picker; A, the cam-shaft, which is shown in Fig. 1 provided with the ball cams A A usually used in woolen looms.

A in Fig. 2 indicates the picker-rod, which is partly broken away to show the pickerslot A in therear side of the shuttle-box.

The preferably square rock-shaft B is journaled at one end in the bracket B and at the other end in the block B which is supported adjustably in the recessed plate 13 between the screws 13 B". The cam-shoe B is preferably formed in one piece with the rectangular sleeve B and is longitudinally adj ustable on the rock-shaft B, to which it is secured by the screws B B By this construction the shoe 8 can be adjusted to the ballcams A by vertically raising or lowering the end of the rock-shaft supported in the block B and by moving the shoe longitudinally on the rock-shaft.

The lever O has at its lower end the sleeve 0, the square hole, in which loosely (its the rock-shaft B, and is secured to the shaft by the bolts 0 The bracket C is slotted part of its length and is secured to the frame A by a bolt and may be accurately adjusted, so that the rubber or other cushion C will arrest the lever O at the desired point. The set-screw C assists in the adjustment. The strap 0, secured at one end to the lever O, is connected to the floor-spring C in the manner usual with picker-sticks and acts to return the lever C to the positions shown in Figs. 2 and 5. The upper end of the lever C is bifurcated and provided with the pivot 0 The frame 0 has one of the bearing-blocks adjustably held, so that the same may be adjusted to bear on the pivot C by means of the screw C The picker is provided with'the bracketplate 0 The blade 0 preferably of flexible steel, is secured to the frame 0 and pivotally connected to the lower part of the plate 0 A number of holes in the blade C permit of the adjustment of the pivotal connection of the blade with the plate 0 When in operation on a loom, the revolution of the cam-shaft brings one of the balls A in contact with the cam-shoe on one side of the loom and then the other ball A in contact with the cam-shoe on the opposite side of the loom, while the crank-shaft makes two revolutions and reciprocates the lay twice. The passing of the ball-cam over the cam-shoe rocks the rock-shaft and moves the bifurcated end of the lever C, and with it the picker, quickly inward, th rowingthe shuttle from the shuttle-box across the loom. The length of and the flexibility of the blade (1 permit the lay to swing through the are of a circle required to beat up the cloth; but at the moment when the shuttle is thrown the picker-plate is practically in line with the lever O and the shuttle is readily thrown. Fig. 1 shows the relative positions of the parts at the moment the cam acts on the shoe and the shuttle. is thrown.vv

the flexible blade 0 pivot-ally secured to the plate 0 the frame C secured to the blade 0 and having an adjustable journal-block bearing on the pivot 0 the lever O secured to a cam-actuated rock-bar located at the lower part of the loom-frame, the floor-sprint. connected with the lower end of the lever C,

and the stop 0 adjustably secured to a fixed part of the loom and having the cushion C whereby the motion of the cam-actuated rockbar is transmitted at increased speed through the lever 0 directly to the picker, as described. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOSEPH BLANOHET. Witnesses:

J. A. DUPONT, J. A. MILLER, Jr. 

